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authorDiana Craciun <diana.craciun@nxp.com>2019-04-11 21:46:20 +1000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-04-17 08:36:42 +0200
commit1eb1ddbdf5c019d90c690495dc545696c86ed3ce (patch)
treeabe3e9785e893e33aab4a9fea7d4fa3bfab1f6ad
parent5188172929d63775332476e32be735ca1416a8af (diff)
powerpc/fsl: Fix spectre_v2 mitigations reporting
commit 7d8bad99ba5a22892f0cad6881289fdc3875a930 upstream. Currently for CONFIG_PPC_FSL_BOOK3E the spectre_v2 file is incorrect: $ cat /sys/devices/system/cpu/vulnerabilities/spectre_v2 "Mitigation: Software count cache flush" Which is wrong. Fix it to report vulnerable for now. Fixes: ee13cb249fab ("powerpc/64s: Add support for software count cache flush") Cc: stable@vger.kernel.org # v4.19+ Signed-off-by: Diana Craciun <diana.craciun@nxp.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--arch/powerpc/kernel/security.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c
index fd4703b6ddc0..fc41bccd9ab6 100644
--- a/arch/powerpc/kernel/security.c
+++ b/arch/powerpc/kernel/security.c
@@ -23,7 +23,7 @@ enum count_cache_flush_type {
COUNT_CACHE_FLUSH_SW = 0x2,
COUNT_CACHE_FLUSH_HW = 0x4,
};
-static enum count_cache_flush_type count_cache_flush_type;
+static enum count_cache_flush_type count_cache_flush_type = COUNT_CACHE_FLUSH_NONE;
bool barrier_nospec_enabled;
static bool no_nospec;